Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4427
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
WN 4427 · BNA → CMH
departs 11:00 AM CT · arrives 1:20 PM ET
Forecast issued Wed 10:00 PM ET · 10h after departure
Watch this flight
Other days
Wed 9/30
Today 8%
Mon 10/5 8%
Fri 10/9 8%
Odds over time
Arrive at CMH more than 15 minutes late?
14%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
14%
Leave 15+ late
12%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at CMH more than 15 minutes late?
Calm-weather odds: 14% · changed +3 pts in 24h
+3 pts
14%
Yes 14%
No 86%
Leave BNA more than 15 minutes late?
Calm-weather odds: 12% · changed +0 pts in 24h
+0 pts
12%
Yes 12%
No 88%
Arrive at CMH more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to CMH?
On time or early
85%
15–30 min late
8%
30 min–1 hour late
4%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
11am departures from BNA are often late
↑
This flight has been late 22% of the time recently
↑
Other factors
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at CMH
Weather at each end
BNA (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
CMH (destination)
Gusts 9 kt Ceiling 10,000 ft Visibility 8 mi Precip 0.01 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.